InTheDeepEnd wrote:
If you addressed your request to several people, odds are they are all expecting the others to answer. This reminds me of what I was told about being a first responder to an accident... Never say "call 911" or "get help". Instead you are supposed to look at one particular person, in the eye, and tell that person to call 911. If you need something else, you look at 1 person and tell them to do what you need. Otherwise, no one will call 911 or get you what you need because human psychology is simply that we are always expecting the other guy to do whatever needs doing, unless the request or demand is directed specifically at us.
Which is an example of this:
http://en.wikipedia.org/wiki/Bystander_effect (or, at least, a variant of it).
If this is indeed the case, try just addressing your request to a few people next time (no more than three, say)--those who might be the best at handling what you are requesting.
If you continue to get ignored, then just do your own part and don't even bother anymore--or go straight to the top (your supervisors, if you have not already done so).
I've had this happen to me too, and I still don't know exactly why.
_________________
The existence of the leader who is wise
is barely known to those he leads.
He acts without unnecessary speech,
so that the people say,
'It happened of its own accord.' -Tao Te Ching, Verse 17